Errr Ummm..
Well, that looks like Lammers behind the wheel, and I'd have a stab at 89 for the year. But hold on, I'm sure Lammers drove the number 1 car. Is this a trick question?
It's raining, so there's a good chance that it's Silverstone, or was it Donnington? But, the car isn't in sprint trim. If I remember right, TWR used to cut out the bodywork around the rear wheels for the shorter races.
Ohhh I dunno:
Suzuka
WSC 1000km
1989
Lammers.